package com.sky.controller.user;

import com.sky.constant.StatusConstant;
import com.sky.entity.Dish;
import com.sky.result.Result;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;

@RestController
@RequestMapping("/user/dish")
@Slf4j
@Api(tags = "C端用户端-菜品接口")
public class UserDishController {
    @Autowired
    private DishService dishService;
    @Autowired
    private RedisTemplate redisTemplate;

    /**
     * 根据分类id查询菜品列表
     *
     * @param categoryId 分类id
     */
    @GetMapping("/list")
    @ApiOperation("根据分类id查询菜品列表")
    public Result<List<DishVO>> list(Long categoryId) {
        log.info("查询分类菜品ID：{}", categoryId);
        //判断缓存数据是否存在
        //构造Redis的key
        String key = "dish_" + categoryId;
        //判断redis中是否能找到缓存数据
        List<DishVO> list = (List<DishVO>) redisTemplate.opsForValue().get(key);
        if (list != null && !list.isEmpty()) {
            return Result.success(list);
        }else {
            //创建查询参数对象
            Dish dish = Dish.builder()
                    .categoryId(categoryId)
                    .status(StatusConstant.ENABLE)
                    .build();
            list = dishService.listwithFlavor(dish);
            //缓存数据
            redisTemplate.opsForValue().set(key, list);
        }
        return Result.success(list);
    }
}
